*** Using Compiler 'V6.16', folder: 'D:\Keil_v5\ARM\ARMCLANG\Bin' Build target 'Steering Wheel_Infatry' Note: source file '..\User\bsp\can.c' - object file renamed from 'Steering Wheel_Infatry\can.o' to 'Steering Wheel_Infatry\can_1.o'.Note: source file '..\User\bsp\gpio.c' - object file renamed from 'Steering Wheel_Infatry\gpio.o' to 'Steering Wheel_Infatry\gpio_1.o'.Note: source file '..\User\bsp\i2c.c' - object file renamed from 'Steering Wheel_Infatry\i2c.o' to 'Steering Wheel_Infatry\i2c_1.o'.Note: source file '..\User\bsp\spi.c' - object file renamed from 'Steering Wheel_Infatry\spi.o' to 'Steering Wheel_Infatry\spi_1.o'.Note: source file '..\User\task\ai.c' - object file renamed from 'Steering Wheel_Infatry\ai.o' to 'Steering Wheel_Infatry\ai_1.o'.Note: source file '..\User\task\dr16.c' - object file renamed from 'Steering Wheel_Infatry\dr16.o' to 'Steering Wheel_Infatry\dr16_1.o'.Note: source file '..\User\task\Oid.c' - object file renamed from 'Steering Wheel_Infatry\Oid.o' to 'Steering Wheel_Infatry\oid_1.o'.Note: source file '..\User\module\cmd\cmd.c' - object file renamed from 'Steering Wheel_Infatry\cmd.o' to 'Steering Wheel_Infatry\cmd_1.o'.Note: source file '..\User\module\cmd\cmd_adapter.c' - object file renamed from 'Steering Wheel_Infatry\cmd_adapter.o' to 'Steering Wheel_Infatry\cmd_adapter_1.o'.Note: source file '..\User\module\cmd\cmd_behavior.c' - object file renamed from 'Steering Wheel_Infatry\cmd_behavior.o' to 'Steering Wheel_Infatry\cmd_behavior_1.o'.compiling shoot.c... linking... Steering Wheel_Infatry\Steering Wheel_Infatry.axf: Error: L6218E: Undefined symbol Chassis_UpdateFeedback (referred from shoot_ctrl.o). Not enough information to list image symbols. Not enough information to list load addresses in the image map. Finished: 2 information, 0 warning and 1 error messages. "Steering Wheel_Infatry\Steering Wheel_Infatry.axf" - 1 Error(s), 0 Warning(s). Target not created. Build Time Elapsed: 00:00:03